His style was fit to convey the most intricate business to the understanding with the utmost clearness.
Addison.

The nature of man is intricate.
Burke.

Syn. -- Intricate, Complex, Complicated. A thing is complex when it is made up of parts; it is complicated when those parts are so many, or so arranged, as to make it difficult to grasp them; it is intricate when it has numerous windings and confused involutions which it is hard to follow out. What is complex must be resolved into its parts; what is complicated must be drawn out and developed; what is intricate must be unraveled.